电气工程学报

电气工程学报 ›› 2016, Vol. 11 ›› Issue (7): 46-50.doi: 10.11985/2016.07.007

• • 上一篇    

无线携能通信系统能量获取研究

刘倩,孙鸣,陈健   

  1. 合肥工业大学 电气与自动化工程学院 合肥 230009
  • 收稿日期:2016-01-04 出版日期:2016-07-25 发布日期:2020-01-09
  • 作者简介:刘 倩 女 1990年生,硕士研究生,研究方向为电力系统与通信。|孙 鸣 男 1957年生,教授,研究方向为电力系统及其自动化。
  • 基金资助:
    国家高技术研究发展计划863计划资助项目(2015AA050603)

Study on Energy Harvesting in Simultaneous Wireless Information and Power Transmission Network

Qian Liu,Ming Sun,Jian Chen   

  1. Hefei University of Technology Hefei 230009 China
  • Received:2016-01-04 Online:2016-07-25 Published:2020-01-09

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摘要：

本文首先概述了无线携能通信技术的重要意义及发展前景,进而构建了无线携能通信系统的重要架构,并针对该系统中能量获取的问题,提出一种最大化获取能量的方法并针对此方法建立数学模型,由于该模型是非凸优化的且在数学上很难直接求解,因此将利用半定松弛方法将其转化为可解的凸优化问题。最后将此方法运用Matlab仿真实现,验证多输入单输出（MISO）系统的优越性,并得出接收端所获取的能量随发送端天线数量的增加而增大的结论。

关键词: 无线携能通信, 多输入单输出系统, 获取能量, 半定松弛

Abstract:

This paper firstly introduces the meaning and prospects of simultaneous wireless information and power transmission network (SWIPT). And then designs the model of SWIPT system. For problem of optimizing harvested energy, we point out a method of optimizing harvested energy and build the related model. Due to this model is a non-convex problem and is hard to be solved, we transforms it into a solvable convex problem by semi-definite program (SDP). Finally, we use the Matlab software to simulate and verify that MISO system has a better performance. In addition, we conclude that with the increasing number of antennas, the energy receiver can harvest more energy.

Key words: Simultaneous wireless information and power transmission, multi input single output system, harvested energy, semi-definite program

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